Title:
POLARIZING PLATE AND ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/200622
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a polarizing plate and an organic electroluminescent device, the polarizing plate being capable of protecting a display element from outside light when used in a display device, particularly in an organic EL display device, and improving adhesion between a layer containing a dye compound and an adjacent layer without the display element causing light emission loss. This polarizing plate comprises a hard coat layer, a protective film, a polarizer, and a phase difference film in this order from the viewing side, and is characterized in that the hard coat layer and/or the protective film contains a dye compound that has a maximum absorption wavelength within a range of 360-379 nm in an absorption spectrum in a wavelength region of 300-460 nm, the protective film and/or the phase difference film contains an ultraviolet absorbent, and a layer containing the dye compound is located closer to the viewing side than a layer containing the ultraviolet absorbent.
Inventors:
MIKOSHIBA EMIKO (JP)
Application Number:
PCT/JP2021/012791
Publication Date:
October 07, 2021
Filing Date:
March 26, 2021
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G02B5/30; C09D7/41; C09D201/00; C09J7/29; G02B1/14; G02B5/22; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2020100926A1 | 2020-05-22 | |||
| WO2018102341A1 | 2018-06-07 | |||
| WO2021006039A1 | 2021-01-14 | |||
| WO2020137529A1 | 2020-07-02 |
Foreign References:
| JP2017168430A | 2017-09-21 | |||
| JP2012041333A | 2012-03-01 | |||
| JP2020500249A | 2020-01-09 | |||
| JP2020003650A | 2020-01-09 | |||
| JP2019204086A | 2019-11-28 |
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
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